TM 5-3895-385-23-1
0046
NOTE
There is one 30 amp fuse in the ECM battery supply positive (+) line. There is also one 5 amp
fuse in the start switch ignition line.
Table 1. SPN#168, FMI#18 ― Engine ECM Supply Voltage Level Below
Minimum System Voltage Level.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Battery connections corroded or
Inspect battery installation and
1. Clean corrosion from battery
loose.
connections (WP 0357, Vol 2).
terminals, and secure battery
cable connections (WP 0357,
Vol 2).
2. If battery terminals are clean
and cables are secure, proceed
to next malfunction.
2. Battery voltage incorrect.
1. Install fuse box (WP 0277, Vol 2).
2. Connect battery cables (WP
0357, Vol 2).
3. Turn keyless engine switch to the
AUX position (TM 5-3895-385-
10), but do not start engine.
4. Measure voltage for combined
1. If battery voltage is at least 24
battery circuit (WP 0443, Vol 3).
Volts Direct Current (VDC), turn
keyless engine switch to the
OFF position (TM 5-3895-385-
10), and proceed to next
malfunction.
2. If battery voltage is less than 24
VDC, proceed to next test.
5. Measure the voltage for single
1. If battery voltage is at least 12
battery (WP 0443, Vol 3).
VDC, turn keyless engine
switch to the OFF position (TM
5-3895-385-10), and proceed
to next malfunction.
2. If battery voltage is less than 11
VDC, turn keyless engine
switch to the OFF position (TM
5-3895-385-10), and charge or
replace batteries (WP 0357,
Vol 2).
